Capstone Green Energy (CGEH) DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No.     )

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◻	Definitive Proxy Statement
⌧	Definitive Additional Materials
◻	Soliciting Material under §240.14a-12
CAPSTONE GREEN ENERGY CORPORATION
(Name of Registrant as Specified In Its Charter)
N/A
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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Your Vote Counts! CAPSTONE GREEN ENERGY CORPORATION 2021 Annual Meeting Vote by August 26, 2021 11:59 PM ET CAPSTONE GREEN ENERGY CORPORATION 16640 STAGG STREET VAN NUYS, CA 91406 D57398-P59732 You invested in CAPSTONE GREEN ENERGY CORPORATION and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on August 27, 2021. Get informed before you vote View the Notice and Proxy Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to August 13, 2021. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Smartphone users Point your camera here and vote without entering a control number Vote Virtually at the Meeting* August 27, 2021 11:00 AM, PDT Virtually at: www.virtualshareholdermeeting.com/CGRN2021 *Please check the meeting materials for any special requirements for meeting attendance. V1 For complete information and to vote, visit www.ProxyVote.com Control #

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Board Recommends Voting Items D57399-P59732 Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. 1. Election of Directors Nominees: 01) Paul DeWeese05) Robert F. Powelson 02) Robert C. Flexon06) Denise Wilson 03) Darren R. Jamison07) Ping Fu 04) Yon Y. Jorden For 2. Approve an amendment to increase the number of shares available for issuance under the Capstone Green Energy Corporation 2017 Equity Incentive Plan by 500,000. For 3. Advisory vote on the compensation of the Company’s named executive officers as presented in the proxy statement. For 4. Ratification of the appointment of Marcum LLP as the Company’s independent registered public accounting firm for the fiscal year ending March 31, 2022. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof.